diff --git a/dbusView/dbusView.py b/dbusView/dbusView.py
index fa2396d..a8e357f 100755
--- a/dbusView/dbusView.py
+++ b/dbusView/dbusView.py
@@ -3,94 +3,98 @@
 # SPDX-License-Identifier: Apache-2.0
 # Copyright 2020 Intel Corp.
 
-import subprocess
-from flask import Flask
-from flask import send_file
 import argparse
+import subprocess
 
-REPLACE_CHAR = '~'
+from flask import Flask
+
+REPLACE_CHAR = "~"
 
 app = Flask(__name__)
 
-parser = argparse.ArgumentParser(description='Remote DBus Viewer')
-parser.add_argument('-u', '--username', default='root')
-parser.add_argument('-p', '--password', default='0penBmc')
-parser.add_argument('-a', '--address', required=True)
-parser.add_argument('-x', '--port', required=True)
+parser = argparse.ArgumentParser(description="Remote DBus Viewer")
+parser.add_argument("-u", "--username", default="root")
+parser.add_argument("-p", "--password", default="0penBmc")
+parser.add_argument("-a", "--address", required=True)
+parser.add_argument("-x", "--port", required=True)
 args = parser.parse_args()
 
-busctl = 'sshpass -p {} busctl -H {}@{} '.format(
-    args.password, args.username, args.address)
-header = '<head><link rel="icon" href="https://avatars1.githubusercontent.com/u/13670043?s=200&v=4" /></head>'
+busctl = "sshpass -p {} busctl -H {}@{} ".format(
+    args.password, args.username, args.address
+)
+AVATAR_URL = "https://avatars1.githubusercontent.com/u/13670043?s=200&v=4"
+header = f'<head><link rel="icon" href="{AVATAR_URL}" /></head>'
 
 
 def getBusNames():
-    out = subprocess.check_output(busctl + 'list --acquired', shell=True)
-    out = out.split(b'\n')
+    out = subprocess.check_output(busctl + "list --acquired", shell=True)
+    out = out.split(b"\n")
     out = out[1:]
     names = []
     for line in out:
-        name = line.split(b' ')[0]
+        name = line.split(b" ")[0]
         if name:
             names.append(name.decode())
     return names
 
 
 def doTree(busname):
-    out = subprocess.check_output(busctl + 'tree ' + busname, shell=True)
-    out = out.split(b'\n')
+    out = subprocess.check_output(busctl + "tree " + busname, shell=True)
+    out = out.split(b"\n")
     tree = []
     for line in out:
-        path = line.split(b'/', 1)[-1].decode()
-        path = '/' + path
+        path = line.split(b"/", 1)[-1].decode()
+        path = "/" + path
         tree.append(path)
     return tree
 
 
 def doIntrospect(busname, path):
     out = subprocess.check_output(
-        busctl + 'introspect {} {}'.format(busname, path), shell=True)
-    return out.decode().split('\n')
+        busctl + "introspect {} {}".format(busname, path), shell=True
+    )
+    return out.decode().split("\n")
 
 
-@app.route('/')
+@app.route("/")
 def root():
     out = header
-    out += '<div><H2>Bus Names {}</H2></div>'.format(args.address)
+    out += "<div><H2>Bus Names {}</H2></div>".format(args.address)
     for name in getBusNames():
-        out += '<div> '
+        out += "<div> "
         out += '<a href="{}"> {} </a>'.format(name, name)
-        out += '</div>'
+        out += "</div>"
     return out
 
 
-@app.route('/favicon.ico')
+@app.route("/favicon.ico")
 def favicon():
-    return '<link rel="icon" type="image/png" href="https://avatars1.githubusercontent.com/u/13670043?s=200&v=4" />'
+    return f'<link rel="icon" type="image/png" href="{AVATAR_URL}" />'
 
 
-@app.route('/<name>')
+@app.route("/<name>")
 def busname(name):
     out = header
-    out += '<div><H2>tree {}</H2></div>'.format(name)
+    out += "<div><H2>tree {}</H2></div>".format(name)
     for path in doTree(name):
-        out += '<div> '
+        out += "<div> "
         out += '<a href="{}/{}"> {} </a>'.format(
-            name, path.replace('/', REPLACE_CHAR), path)
-        out += '</div>'
+            name, path.replace("/", REPLACE_CHAR), path
+        )
+        out += "</div>"
     return out
 
 
-@app.route('/<name>/<path>')
+@app.route("/<name>/<path>")
 def path(name, path):
-    path = path.replace(REPLACE_CHAR, '/')
+    path = path.replace(REPLACE_CHAR, "/")
     out = header
-    out += '<div><H2>introspect {} {}</H2></div>'.format(name, path)
+    out += "<div><H2>introspect {} {}</H2></div>".format(name, path)
     for line in doIntrospect(name, path):
-        out += '<div> '
-        out += '<pre> {} </pre>'.format(line)
-        out += '</div>'
+        out += "<div> "
+        out += "<pre> {} </pre>".format(line)
+        out += "</div>"
     return out
 
 
-app.run(port=args.port, host='0.0.0.0')
+app.run(port=args.port, host="0.0.0.0")